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#1
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Hi
It's time to paint my first boat. It's a 26' GRP yacht and I have no idea what I need to do to prepare it for painting and antifouling. Can anybody give me any tips? I've had quotes from a professional painter and it's going to cost me more than I payed for the boat. Thanks in advance Dan |
#2
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The key is preparation and sticking with one manufacturer's system.
Prep is 99% of the work. Scrape/sand off all the loose paint and fill dents and chips with fairing compound. Sand it all again to about 120 grit. Inspect, fill some more and sand again. Spray or roll on a high build primer and sand again. This is when it gets fun because you can see some progress and priner is easier to sand. Now stop, pop a beer and stare at it for a couple of days searching for any imperfections. Two part LPU goes on very thin so it shows every blimish below it. The one part polys are a little thicker but any unevenness will be magnified in the reflection of the top coat. One part poly top coat can be sprayed fairly easily but two part LPU will kill you without proper breathing apparatus. Roll and tip is probably he best method if you are not experienced with spraying. It takes two people. One with a roller and the other with a clean DRY brush. One person rolls on a thin coat and and the other follows immediately lightly tip off the roller marks with the dry brush and watching for hollidays and fisheyes. You want to keep a wet edge to work off of all the time. A third person is helpful for cleaning brushes and mixing paint. If you are reasonably carefull the result will be 95% as good as a pro job. That is just the topsides. I will let someone else talk about bottom paint 'cause I have not gotten that far yet. :-) Dan wrote: Hi It's time to paint my first boat. It's a 26' GRP yacht and I have no idea what I need to do to prepare it for painting and antifouling. Can anybody give me any tips? I've had quotes from a professional painter and it's going to cost me more than I payed for the boat. Thanks in advance Dan -- Glenn Ashmore I'm building a 45' cutter in strip/composite. Watch my progress (or lack there of) at: http://www.rutuonline.com Shameless Commercial Division: http://www.spade-anchor-us.com |
#3
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go have a look at www.yachtpaint.com or at www.awlgrip.com. there are
fairly good instructions on each site. in my view the yachtpaint site is way better for information. they have a "yachpainters guide" which is also downloadable as pdf. in both cases you'll find descriptions of what to do. picking the right products for your application is probably key. yachtpaint.com has guides, tables, etc.. that should help there. summary - you can get a good finish yourself. sanding, filling and priming the hull is the most important part, and the one that takes most time and costs most for pro's to do. once that's done right you could even check the price for a pro just to spray. i know some painters here and just getting them to spray is actually comparatively cheap. it's the prep that's pricey. hugh "Dan" wrote in message ... Hi It's time to paint my first boat. It's a 26' GRP yacht and I have no idea what I need to do to prepare it for painting and antifouling. Can anybody give me any tips? I've had quotes from a professional painter and it's going to cost me more than I payed for the boat. Thanks in advance Dan |
#4
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Glenn has covered painting well -- 99% of the battle is prep. Let me
underline one point he made. The best (longest lived, best looking, highest quality) paint is two part LPU -- it's what they paint airplanes with -- imagine what 500 knots does to a paint job. But it's deadly -- there is no respirator which will protect you -- you need a full body suit with air supplied from outside the paint booth. I'll ask the more fundamental question. Why do you think the boat needs painting? Gelcoat will look tired after a few seasons of being ignored, but a light compounding (auto body compound -- a very mild abrasive -- on a buffer) and waxing can make it look almost like new. We did Swee****er in 1995 -- she was then 13 years old and had spent all of the last 8 years in the tropics -- and she looked very good when done. Or is it that we're two nations spearated by a common language ("GRP yacht" suggests to me you're a British speaker as opposed to an American speaker and the fact that you're asking about a springtime activity right now, suggests you might be Kiwi or Ozzie)? Is this a new boat? If so, pick a brand and follow the directions. If it's a sailboat and you're not racing, you'll probably want one of the ablative paints. The paint can go on with a roller -- much easier than making a beautiful topsides. If you race, you'll want a hard finish anti-fouling, wet sanded smoother than your wildest dreams. If you're on this side of the Line, remember that many anti-fouling paints have to go in the water soon after painting, so hold off til next spring. If it's a used boat, you either have to strip all the old anti-fouling off, or determine what type it is, as there are compatibility issues between systems. This is one area where an expert can help. Remember that anti-fouling paint is expensive -- up to US$175 per gallon here -- and, while you pretty much get what you pay for, asking around will help you spend wisely. Specific recommendations from us are impossible because local rules will also influence what you use. Anti-fouling paint is a peculiar case of deliberately trying to poison part of the environment -- barnacles, etc. -- while not hurting anything else. Different jurisdictions balance this differently, so that what works best for you may be illegal here. Jim Woodward www.mvFintry.com Glenn Ashmore wrote in message news:Timlb.85958$sp2.79250@lakeread04... The key is preparation and sticking with one manufacturer's system. Prep is 99% of the work. Scrape/sand off all the loose paint and fill dents and chips with fairing compound. Sand it all again to about 120 grit. Inspect, fill some more and sand again. Spray or roll on a high build primer and sand again. This is when it gets fun because you can see some progress and priner is easier to sand. Now stop, pop a beer and stare at it for a couple of days searching for any imperfections. Two part LPU goes on very thin so it shows every blimish below it. The one part polys are a little thicker but any unevenness will be magnified in the reflection of the top coat. One part poly top coat can be sprayed fairly easily but two part LPU will kill you without proper breathing apparatus. Roll and tip is probably he best method if you are not experienced with spraying. It takes two people. One with a roller and the other with a clean DRY brush. One person rolls on a thin coat and and the other follows immediately lightly tip off the roller marks with the dry brush and watching for hollidays and fisheyes. You want to keep a wet edge to work off of all the time. A third person is helpful for cleaning brushes and mixing paint. If you are reasonably carefull the result will be 95% as good as a pro job. That is just the topsides. I will let someone else talk about bottom paint 'cause I have not gotten that far yet. :-) Dan wrote: Hi It's time to paint my first boat. It's a 26' GRP yacht and I have no idea what I need to do to prepare it for painting and antifouling. Can anybody give me any tips? I've had quotes from a professional painter and it's going to cost me more than I payed for the boat. Thanks in advance Dan |
#5
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![]() "hugh" wrote in message ... go have a look at www.yachtpaint.com or at www.awlgrip.com. there are fairly good instructions on each site. in my view the yachtpaint site is way better for information. they have a "yachpainters guide" which is also downloadable as pdf. in both cases you'll find descriptions of what to do. picking the right products for your application is probably key. yachtpaint.com has guides, tables, etc.. that should help there. summary - you can get a good finish yourself. sanding, filling and priming the hull is the most important part, and the one that takes most time and costs most for pro's to do. once that's done right you could even check the price for a pro just to spray. i know some painters here and just getting them to spray is actually comparatively cheap. it's the prep that's pricey. hugh Looks like I've got a fair amount of work ahead of me! Thanks for the sites, I've been trying to find boat painting sites for a while now but of course I never used "yacht" in my searches. I have a breakdown of the spraying only from the pros so I'll check that when I get home. Thanks for the advice. Dan |
#6
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Thanks Glenn
Great advice. I might look at working on hugh's theory of doing the prep work and getting the pro's to do the 2 part spraying once it's done. "Glenn Ashmore" wrote in message news:Timlb.85958$sp2.79250@lakeread04... The key is preparation and sticking with one manufacturer's system. Prep is 99% of the work. Scrape/sand off all the loose paint and fill dents and chips with fairing compound. Sand it all again to about 120 grit. Inspect, fill some more and sand again. Spray or roll on a high build primer and sand again. This is when it gets fun because you can see some progress and priner is easier to sand. Now stop, pop a beer and stare at it for a couple of days searching for any imperfections. Two part LPU goes on very thin so it shows every blimish below it. The one part polys are a little thicker but any unevenness will be magnified in the reflection of the top coat. One part poly top coat can be sprayed fairly easily but two part LPU will kill you without proper breathing apparatus. Roll and tip is probably he best method if you are not experienced with spraying. It takes two people. One with a roller and the other with a clean DRY brush. One person rolls on a thin coat and and the other follows immediately lightly tip off the roller marks with the dry brush and watching for hollidays and fisheyes. You want to keep a wet edge to work off of all the time. A third person is helpful for cleaning brushes and mixing paint. If you are reasonably carefull the result will be 95% as good as a pro job. That is just the topsides. I will let someone else talk about bottom paint 'cause I have not gotten that far yet. :-) Dan wrote: Hi It's time to paint my first boat. It's a 26' GRP yacht and I have no idea what I need to do to prepare it for painting and antifouling. Can anybody give me any tips? I've had quotes from a professional painter and it's going to cost me more than I payed for the boat. Thanks in advance Dan -- Glenn Ashmore I'm building a 45' cutter in strip/composite. Watch my progress (or lack there of) at: http://www.rutuonline.com Shameless Commercial Division: http://www.spade-anchor-us.com |
#7
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![]() "Jim Woodward" wrote in message om... Glenn has covered painting well -- 99% of the battle is prep. Let me underline one point he made. The best (longest lived, best looking, highest quality) paint is two part LPU -- it's what they paint airplanes with -- imagine what 500 knots does to a paint job. But it's deadly -- there is no respirator which will protect you -- you need a full body suit with air supplied from outside the paint booth. I'll ask the more fundamental question. Why do you think the boat needs painting? Gelcoat will look tired after a few seasons of being ignored, but a light compounding (auto body compound -- a very mild abrasive -- on a buffer) and waxing can make it look almost like new. We did Swee****er in 1995 -- she was then 13 years old and had spent all of the last 8 years in the tropics -- and she looked very good when done. Or is it that we're two nations spearated by a common language ("GRP yacht" suggests to me you're a British speaker as opposed to an American speaker and the fact that you're asking about a springtime activity right now, suggests you might be Kiwi or Ozzie)? Is this a new boat? If so, pick a brand and follow the directions. If it's a sailboat and you're not racing, you'll probably want one of the ablative paints. The paint can go on with a roller -- much easier than making a beautiful topsides. If you race, you'll want a hard finish anti-fouling, wet sanded smoother than your wildest dreams. If you're on this side of the Line, remember that many anti-fouling paints have to go in the water soon after painting, so hold off til next spring. If it's a used boat, you either have to strip all the old anti-fouling off, or determine what type it is, as there are compatibility issues between systems. This is one area where an expert can help. Remember that anti-fouling paint is expensive -- up to US$175 per gallon here -- and, while you pretty much get what you pay for, asking around will help you spend wisely. Specific recommendations from us are impossible because local rules will also influence what you use. Anti-fouling paint is a peculiar case of deliberately trying to poison part of the environment -- barnacles, etc. -- while not hurting anything else. Different jurisdictions balance this differently, so that what works best for you may be illegal here. Jim Woodward www.mvFintry.com Thanks Jim, The yacht is about 20 years old now. It hasn't been painted on the topsides for what looks like 5 years. Thankfully I have the make and type of antifouling written down somewhere at home. I will still strip it down completely to be sure though. I'm in New Zealand so this is the time of year to get it done, although I may have left it a bit late. I'll give the car polish a go this weekend and see what I can buff up on the topsides, but it's had a good thrashing over the years (the last ownser was a Team NZ crew member) and it could do with a fresh coat of paint. Cheers Dan |
#8
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![]() Dan wrote: I'm in New Zealand so this is the time of year to get it done, although I may have left it a bit late. I'll give the car polish a go this weekend and see what I can buff up on the topsides, but it's had a good thrashing over the years (the last ownser was a Team NZ crew member) and it could do with a fresh coat of paint. I thought you were up here. In that case my advice would be to put it off until next April. Just wash it down, slap on some bottom paint and go sailing. If you try to do it now you will miss the whole season or try to rush the job and not be as happy as if you took your time. -- Glenn Ashmore I'm building a 45' cutter in strip/composite. Watch my progress (or lack there of) at: http://www.rutuonline.com Shameless Commercial Division: http://www.spade-anchor-us.com |
#9
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"Glenn Ashmore" wrote in message
news:5VBlb.87131$sp2.19968@lakeread04... I thought you were up here. In that case my advice would be to put it off until next April. Just wash it down, slap on some bottom paint and go sailing. If you try to do it now you will miss the whole season or try to rush the job and not be as happy as if you took your time. -- Glenn Ashmore I'm building a 45' cutter in strip/composite. Watch my progress (or lack there of) at: http://www.rutuonline.com Shameless Commercial Division: http://www.spade-anchor-us.com I like that idea, it's almost summer and I can't wait to get on the water. |
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